I am trying to use Serviio on a WHS V1 server which has only has a 20GB C drive partition. As I have about 2TB spare on my D drive I would like to move the database onto that.I have found an old post about editing the services VMOPTIONS file and I was wondering if that is still current?I would assume that I would need to stop serviio, move the database folder, edit the above file and than restart Serviio.Note the database is already up to 6GB and hasn't finished indexing yet

Sure!. It will work (-Dderby.system.home=/extdrive/serviio/library).6GB for 2TB seems too much (unless all media are music files). I suggest finish migrating and then clean and compress database (there are some posts about that).